Door-lock.



No. 856,214. PATBNTED JUNE 11, 1907.

A. J. BERGER.

DOOR LOCK.

APPLIGATION HLED JAN. 2s. 1907.

W/TNESSES; W

' ATTORNEYS.

iiNrrnn arianne' PATENT FFIQES ANTON J, BERGE or MiLwALiknE, WISCONSIN.

DOOR-LOCK.

To all whom t may concern:

Be it' known that I, ANTON J. BERGER, a citizen of the United States,residing at the city of Milwaukee, county of Milwaukee, and State ofWisconsin, have invented new and useful Improvements in Door Locks, ofwhich the followinof is a specification.

My invention relates to improvements in that class of door fasteners inwhich a door is retained in its closed position by spring actuatedsliding bolt which bolt is adapted to be automatically thrown back asthe door is closed by contact of its protruding beveled end with theside of a retaining plate, while said bolt is thrown forward intollocking engagement with such retaining plate by the recoil of theactuating spring.

The object of my invention is among other thin s, first, to provide asuitable operating han le as a substitute for the knob heretofore usedby -wliich the sliding bolt will be drawn back out of engagement lwiththe retaining plate by simply drawing rearwardly upon such handle andthe necessity of turning the handle as the door is opened is avoid ed.Second, to provide a bolt operating device which when not in use may befolded down parallel with or within the surface of the door, and third,to provide a more simple and efficient means for operating the doorretaining bolt and one which will also be less liable to get out oforder than those heretofore used. v

My invention is further explained by reference to the accompanyingdrawings in which,

Fi ure 1 represents the edge of a door provide vwith my improvedfastening, part of which is indicati d in dotted lines. Fig. 2 is afront view of my device in connection with a door, and Fig. 3 is avertical section thereof drawn on line -:z: of Fig. 1.

Like parts are identified by the same reference figures throughout theseveral views. 1 represents the door, 2 -the door retaining bolt, 3 theoperating handle, 4 an elbow crank lever by which motion is communicatedfrom the operating handle 3 to the bolt pre-y paratory to .opening thedoor.

5 represents a bolt actuating spring by which the bolt is automaticallythrown out into its locking position.

5 is an inolosing case for the actuating mechanism which is secured in arecess of the door in the ordinary manner by the screws 6.

7 is a plate upon which the operating han- Specification of LettersPatent.

Application filed January 28,1907. Serial No. 354,447.

from said inclosing case,

Patented June 11, 1907.

dle is pivotally supported in contact with the elbow crank lever, asimilar plate 7 not shown is located upon the opposite side of the door.

The elbow crank lever is pivotally supported from an inclosing case 5 bythe bolt 8 and is pivotally connected at its lower end with thereciprocating bolt 2 by the pin 9. The actuating spring 5 is connectedat one end with the elbow crank lever 4l by a pin 10 and at its oppositeend to the inclosing case 5 by the in 11. p The handle 3 is pivotallyconnected with the plate 7 by the bolt 12 and handle supporting lugs 13.Thus it will be obvious that when the outer end of the handle 3 israised, the lug 14 which is formed integrally with said handle, will bebrought in contact with the upper arm 15 of the elbow crank lever,whereby the lower arm of said lever will be thrown toward the left, andwhereby the bolt 2 will be drawn out of engagement with the retainingplate of the door which is supported from the door casing in theordinary manner, while by a rearward pull upon the handle 3 the doorwill be opened, When, however, the door is swung into its closedpositionthe beveled end 16 of the bolt will contact with the doorretaining plate whereby said bolt will be automatically thrown inwarduntil the door has reached its closed position when by the recoil ofsaid spiral spring 5 said bolt will be thrown outward an into engagementwith the retaining plate. It will be understood that both sides of thedoor are provided with similar handles 3 as shown in Fig. 1 and thatboth handles 3 are adapted to act in like manner upon the elbow cranklever as the door is opened. Thus it will be obvious as previouslystated that the same movement of the handle which is required. indrawing the door open will simultaneously disengage the bolt from itsretaining plate.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent is,

In a doorlock the combination of a bolt inclosing case, a reciprocatingbolt inclosed in said case, an elbowcrank lever pivotally supported atthe angle of its respective arms means for pivotallyA connecting one ofthe arms of said lever with one end of Said reciprocating bolt, springactuated means for4 normally retaining said bolt in its extended lockingposition, twol IOO door operating handles pivotiilly supported lockingpositiomell substantially 'as and for 1o from the respective walls tosaid bolt in closing ease at right angles to said elbow crank lever, theinner pivotall)T supported ends of said handles being adapted as their louter ends are raised to Contact with the free arm of said elbow cranklever, whereby said lever is turned upon its supporting pivot and saidbolt is withdrawn from its the purpose specified.

In testimonyv whereof I affix my signature in the presence of twowitnesses.

ANTON J. BERGER.

Witnesses:

- JAs. B. ERWIN, JOHN H. NoLL.

